CVE-2023-39959

Existence of calendars and address books can be checked by unauthenticated users

CVSS 3.5 LOWEPSS 0.5%CWE-284

Vexday Risk Score

8Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 3.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

10 ago 2023Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.9, 26.0.4, and 27.0.1, unauthenticated users could send a DAV request which reveals whether a calendar or an address book with the given identifier exists for the victim. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Produtos afetados

nextcloud · security-advisories

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Referências

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g97r-8ffm-hfpj https://github.com/nextcloud/server/pull/38747 https://hackerone.com/reports/1832126